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We must do some details on the use of the power module

Source: Guangzhou Nengda Power Technology Co., Ltd. Time: 2019-11-08 17:47:08 Views:

There is an old saying that a good horse has a good saddle. Good things must have good use. It is the same in the neighborhood of our power module. If the power module is used well, not only the life cycle will be extended, but the work efficiency can also be improved. Let's take a look at the matters needing attention when using the power module together!


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Extremely light use

Usually the power module has a minimum load limit, which varies from manufacturer to manufacturer. It is usually around 10%. Due to the difficulty of continuous storage of the energy storage components when the load is too light, the amount of current will not be continuous, which may cause the output operating voltage to be unstable. It is determined by the principle of the power supply itself. But what if the customer does have a light load or even full load? The most convenient and best way is to add a certain dummy load, about 2% of the power, which can be preset by the module manufacturer before the factory setting, and Appropriate resistors can be installed outside the control module by the customer as a load. In particular, if the former is selected, the high efficiency of the control module will be reduced.


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Proper installation reduces equipment stress

The method of deriving the power module is a metal material pin. The power module and the external route, the metal material pin and the internal circuit of the power module are connected by electric welding. The mechanical vibration intensity is very strong in some unique places, especially the heat sink is installed on the high-power power module, this phenomenon is even more serious. Although the power module is usually encapsulated with thermally conductive insulating rubber, it can provide good buffer maintenance for the components. However, spot welding may not withstand severe vibration stress and rupture, causing the power module to stop running. At this time, it must be used on the basis of welding. For other fixing and buffering measures, for example, the control module can be fixed to the main box, large circuit board, and other components with relatively high vibration resistance performance by using fixtures or bolts. At the same time, some elastic raw materials are cushioned in the middle to buffer the stress caused by vibration.


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The above is the content shared by Guangzhou Nengda Power Technology Co., Ltd. I hope the above content can help everyone. For more information, please visit our official website: http://yongle-sh.com